Q) why we create session?
Ans This is the most basic question that why we create session. See data is stored in tables, so to manipulate the data which is stored in tables we use sessions. Session is used to add data into tables, we can delete the data from tables. For these purpose we have different kinds of session or we can say types of session:1)Maintain Session2)Update Session3)Print Session4)Display Session5)Graph Session6)Conversion Sess...